Radiator cap



July 6 1926.

J. B. BUSHNELL RADIATOR CAP Filed Oct. 10, 1925 INVENTOR JOHN B. BUSHNELL M ATTORNEY Patented July 6, 1926.

UNITED STATES PATENT OFFICE.

JOHN B. BUSHNELL, OF BERKELEY, CALIFORNIA, ASSIGNOR IIO BARRY-MACBETH SALES COMPANY, OF BERKELEY, CALIFORNIA.

RADIATOR CAP.

Application filed. October 10, 1923. Serial No. 667,675.

My invention is an improved automobile radiator cap.

The object of my invention is to provide a closure for the cap which may be opened for the admission of water without disturbing the cap on the radiator.

Another object is to provide a cap of this character which is simple in construction and inexpensive to manufacture.

Other objects and advantages will appear throughout the course of the following detained description.

In the annexed drawing in which my invention is illustrated:

Figure 1 is a front elevation of my cap.

Figure 2 is a plan view of the same.

Figure 3 is an enlarged sectional View taken on line 33 of Figure 2.

Figure 4 is a diassembled view, partly in section, of the closure member.

Figure 5 is a perspective view of one of the centering sleeves.

Referring more particularly to the drawing, the cap 1 is threaded to the radiator inlet in the usual manner, and it may be of any desired style. In the drawing I have shown it as having bars 22. An embossment 3 is formed on the forward face of the cap 1, the exterior shape of which is attractive in appearance and serves as an ornament. A bore 4 extends downwardly from the top of the embossment 3 into the bore 5 of the cap 1.

The closure over the bore 4 consists of a top plate 6, a bottom plate 7 and a fibrous washer 8 between the plates 6 and 7. The washer 8 is the same size as the plate 6 and rests on the shoulder 9 around the bore 4 to effectually seal this opening when the closure is in position.

The three members 6, 7 and 8 are held together by a vertical latch plate 10 upon which are formed a pair of short lugs 11 and 12, and a longer lug 13. The lugs 11 and 12 extend only through the plate 6 and secure it to the latch plate 10, while the lug 13 extends through the plates 6, 7 and S and is per-nod under the plate 7, thus securely holding the fibre washer 8 in position. This con struction makes an easily constructed and quickly assembled closure. This closure is pivoted to the cap by a bail 14 which extends through a slot 15 in the plate 10 and is pivoted at its ends in the cap. A pair of sleeves 16 and 17 are slipped on the bail 14 and engage either side of the plate 10, thus centering the closure on the bail. These sleeves are held in position on the bail by bending it at a sharp angle at the outer ends of the sleeves. The slot 15 in the plate 10 is inclined downwardly towards the forward end of said plate; thus when the bail 14 is swung forwardly to release the closure, it engages the upper surface of the slot and raises the forward edge of the closure which breaks the seal, after which the closure is readily removed.

Having described my invention, I claim:

1. A radiator cap having a central bore therein, an embossment on said cap, said embossment having a bore therein, extending into the cap bore, a closure over said embossment bore, said closure comprising a plate to cover the embossment bore, a vertical latch plate secured thereto, and provided with a slot therein, a bail pivoted to said cap, and extending through said slot, sleeves carried by said bail on either side of said latch plate, said bail being bent at an angle adj aoent the outer end of each of said sleeves whereby said sleeves are held in position.

2. A radiator cap having a central bore therein, an embossment on said cap, said embossment having a bore therein extending into the cap bore, a closure over said embossment bore, said closure comprising a plate, a bail pivoted to said cap, a vertical plate secured to the closure plate, said vertical plate having an inclined slot therein, said bail extending through the slot, and two sleeves secured to said bail and adapted to bear against the vertical plate.

3. A radiator cap having a central bore therein, an embossment on said cap, said embossment having a bore therein extending into the cap bore, a closure over said embossment bore, said closure comprising an upper plate and a lower plate, a strip of fibrous material between said plates, a vertical plate secured to said upper and lower plates, a bail pivoted to said cap, and means to journal said vertical plate on said bail.

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In testimony whereof I aflix my signature.

JOHN B. BUSHNELL. 

